Journalist and broadcaster Dan Wootton has left The Sun newspaper to present a show on GB News and write for MailOnline.
The 37-year-old, from New Zealand, is currently executive editor at The Sun and hosts a slot on talkRadio.
He is known for his role in breaking the story of Megxit – the withdrawal of the Duke and Duchess of Sussex from royal duties.
The move will see him give up his slot at talkRadio and write a twice-weekly column for MailOnline.
Wootton is among the first major signings for GB News, the new network chaired by broadcaster Andrew Neil.
He wrote on Twitter: “After seven life-changing years at The Sun and, more recently, talkRadio, I have made the very tough decision to leave News UK.
“Later this year, I’m joining the on air team of GB News and MailOnline as a columnist. And I’ll still break scoops too, of course!”
He added: “The opportunity to join @afneil at GB News was too good to pass up.
“I feel passionately about GB News’ bold vision to bring a fresh approach to television news and debate that embraces all voices and opinions across Britain.”
GB News will feature more than 6,500 hours of content a year, made exclusively for the channel.
It has been founded by media executives Andrew Cole and Mark Schneider.